#173775#173775

#173775 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.2% C 0.113 H 261.9°. Best body text is #FFFFFF at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#173775
RGB	rgb(23, 55, 117)
HSL	hsl(220, 67%, 27%)
HSV	hsv(220, 80%, 46%)
CMYK	cmyk(80.3%, 53%, 0%, 54.1%)
CIE-LAB	lab(24.32, 12.68, -38.97)
CIE-LCH	lch(24.32, 40.98, 288.03°)
OKLab	oklab(35.19% -0.016 -0.1121)
OKLCH	oklch(35.19% 0.113 261.9)
XYZ	xyz(4.9293, 4.1983, 17.3767)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173775 #755517

analogous

#176675 #173775 #261775

triadic

#173775 #751737 #377517

tetradic

#173775 #751766 #755517 #177526

square

#173775 #751766 #755517 #177526

split-complementary

#173775 #752617 #667517

monochromatic

#050C1A #0D1F42 #173775 #214FA8 #3069D6

Accessibility & contrast

On white

11.41

#173775 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#173775 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173775

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173775	#FFFFFF	#000000	##FFFFFF
##173775	1.00	11.41	1.84	11.41
#FFFFFF	11.41	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#103E77

Deuteranopia (green-blind)

#003674

Tritanopia (blue-blind)

#004650

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173775;
/* rgb */ color: rgb(23, 55, 117);
/* oklch */ color: oklch(35.2% 0.113 261.9);

Tailwind

colors: {
  custom: {
    50: '#646d9d',
    500: '#173775',
    950: '#000000',
  },
}

SCSS

$custom: #173775;
$custom-light: #646d9d;
$custom-dark: #000000;

JSON

{
  "hex": "#173775",
  "rgb": {
    "r": 23,
    "g": 55,
    "b": 117
  },
  "hsl": {
    "h": 219.574,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.35185,
    "c": 0.11327,
    "h": 261.9
  },
  "luminance": 0.04199
}

Semantic roles & 50–950 ramp

primary

#173775

secondary

#AA853D

accent

#AF3EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #173775

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →